72214019 has 2 divisors, whose sum is σ = 72214020. Its totient is φ = 72214018.

The previous prime is 72213991. The next prime is 72214039. The reversal of 72214019 is 91041227.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72214019 - 2⁸ = 72213763 is a prime.

It is a super-2 number, since 2×72214019² = 10429729080264722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (72214039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36107009 + 36107010.

It is an arithmetic number, because the mean of its divisors is an integer number (36107010).

Almost surely, 2^72214019 is an apocalyptic number.

72214019 is a deficient number, since it is larger than the sum of its proper divisors (1).

72214019 is an equidigital number, since it uses as much as digits as its factorization.

72214019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 72214019 is about 8497.8832070110. The cubic root of 72214019 is about 416.4285582142.

It can be divided in two parts, 722 and 14019, that added together give a palindrome (14741).

The spelling of 72214019 in words is "seventy-two million, two hundred fourteen thousand, nineteen".